56 lines
1.2 KiB
Go
56 lines
1.2 KiB
Go
//go:build linux
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package loadaverage
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import (
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"bufio"
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"fmt"
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"os"
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"strconv"
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"strings"
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)
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func getLinuxLoadAverage() (LoadAverageInformation, error) {
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loadFile, err := os.Open("/proc/loadavg")
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if err != nil {
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return LoadAverageInformation{}, fmt.Errorf("Could not find /proc/loadavg. Are you sure you are on linux?")
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}
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defer loadFile.Close()
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fileReader := bufio.NewScanner(loadFile)
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var one_m float64
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var five_m float64
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var fifteen_m float64
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fileReader.Scan()
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if fileReader.Err() != nil {
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return LoadAverageInformation{}, fmt.Errorf("Could not read /proc/uptime.")
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}
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data := fileReader.Text()
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/*
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* fields[0] One minute load average
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* fields[1] Five minute load average
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* fields[2] Fifteen minute load average
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* fields[3] Currently executing/total scheduled
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* fields[4] Most recent process PID
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*/
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fields := strings.Split(data, " ")
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one_m, _ = strconv.ParseFloat(fields[0], 64)
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five_m, _ = strconv.ParseFloat(fields[1], 64)
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fifteen_m, _ = strconv.ParseFloat(fields[2], 64)
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return LoadAverageInformation{
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Load1: one_m,
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Load5: five_m,
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Load15: fifteen_m,
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}, nil
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}
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func GetLoadAverage() (LoadAverageInformation, error) {
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return getLinuxLoadAverage()
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}
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